chapter -- >> host: it comes back full circle and one of the associates that the fbi interviewed of samuel usian on the evening and idaho is a football player who was subsequently also arrested just like brennan mayfield. pick it up from samuel hussein and talk us through the rest. >> guest: one of the people he happened to know in idaho was another young man who converted to islam and this person is an american citizen. he was born in kansas. he was of an african-american family in his father was in prison and his mother, i can't remember what his mother did but she worked for ibm and his grandfather was a pentecostal minister. while he was in college she was a great football player. i have a picture of him and his football uniform in his yearbook and he won an award and was a really good football player but while he was in college as often people do in college he started to rethink his religious beliefs and decided to convert to islam. his grandfather as the minister but still appreciated being a religious person. the investigation of samuel hussein because they were interested in everybody el

another story i tell which is a little more familiar to people than samuel usian is the story of brandon mayfield the oregon lawyer who in the up being suspected of the train bombing in madrid because his fingerprints were similar to those found on the bag in madrid. the agents looked at this -- >> host: you look at it this is probably one of the most horrendous mistakes you ever imagine in terms of investigation. you go back and say how can you connect a white lawyer in oregon with a bombing in madrid and then he will look at it from a lens of the fbi agent making the connection and you can see how those mistakes happened but it helped brandon mayfield. >> guest: two things. when the fbi identified the fingerprints they said its low. when you should be doing and what the fbi is doing now after hundreds of pages of the general reports is a second person who doesn't know the first person made the identification to that independently but that didn't happen. the people all assumed the identification was right when they told the spaniards they said we don't think so and nobody paid attention